I saw one of the guys on the concourse afterwards.
He told me it was all about the relative masses of top quarks and what that means for the fate of the universe.
He was insisting that a low relative mass would result in the end of the universe in 10 billion years; whereas the other bloke stated that a heavier mass would result in existential bodies being materialised out of component atoms.
They decided to run some tests on a supercomputer to simulate the most likely outcome, and clear it up once and for all.
I, for one, am happy with that.